I am small yet I hold great control over spaces both near and far I do not speak yet I grant permission I can welcome you in or keep you out I often travel in pockets or bags and am easily lost causing stress and delay I come in many shapes but serve one simple purpose to open what is closed and secure what is not mine alone is not enough but in the right place I become powerful what am I

I take what is worn and make it clean I spin it around till it looks unseen With soap and water I do my part What daily task gives clothes a fresh start

I keep a working man compensation eligible. I can also keep a cyclist from becoming a vegetable.

I'm born of the grape, but a king I am made, With a pop and a fizz, my presence is swayed. Though I quench no thirst, I'm the toast of the parade.

What do a traffic light and a bat symbol cast onto the night sky have in common?